package cn.tedu;

public class dou1 {
    public static void main(String[] args) {
        byte a = Byte.MAX_VALUE;
        int b = Integer.MAX_VALUE;
        System.out.println(a);
        System.out.println(b);
        byte b1 = 3;
        byte b2 = 5;
        byte c1 = (byte) (b1+b2);
        int c2 = b1+b2;
        System.out.println(c1);
        System.out.println(c2);
    }
}
